Cimicifuga (bugbane) is a herbaceous plant in flower now. The plant gets its common name, bugbane, because the plant was once used as an insect repellent to ward off fleas. Cimicifuga is the Latin for bug repellent. The flowers of cimicifuga racemosa have a foul odour. It is a native of China, Russia and Japan.
Cimicifuga likes a moist, fertile soil enriched with lots of compost, in partial shade. The plant is very hardy and will survive several degrees of frost. It looks great in a herbaceous border.
Cimicifuga simplex ‘Brunette’ is a variety that we have grown for a number of years. It is a clump forming perennial with very dark purple foliage and purple stems. It grows about three feet tall.
The plant is sure to turn some heads at this time of the year when it produces arching stems covered in slightly purple tinted white flowers. The flowers really stand out against the dark foliage. It flowers from September to October.
Solidago (golden rod) continues to provide colour in the herbaceous border. Golden rod has a late flowering season. Some plants may start in July, but most do not flower until late August and continue going strong until October.
The more elegant golden rods are those that have mimosa like flower heads with yellow blooms and pale green leaves. Solidago ‘Golden Shower’ grows to 2 feet tall with golden yellow flowers. There are several dwarf varieties which can fit better into planting schemes. Solidago ‘Goldkind’ has a soft yellow flower and grows to about 20 inches.
Golden rod does best in fertile ground and prefers moist soil. Drought can sometimes result in mildew on the leaves, but full sun or light shade is necessary for good results. All varieties can be propagated from division when dormant or from cuttings taken in spring.
Flowering shrub of the week
Perovskia (Russian Sage) is a shrub that has just finished flowering. Perovskia atriplicifolia is a striking small Himalayan deciduous sub-shrub and was named the perennial plant of the year in 1995. It is a graceful perennial with grey green foliage. During late summer and early autumn this upright plant will put out sprays of lavender blue flowers which attract butterflies and makes nice cut flowers. It releases a strong aroma of sage when crushed. It grows about 4 feet tall and performs best in full sun. It likes a well drained soil, preferring a sandy soil that drains well. Perovskia is a great plant for the middle of a herbaceous border. It should be planted in groups of threes or fives to give the best effect.
The plant should be cut to the ground each spring before growth begins to ensure a lush full growth for the next season. Mulch around the plant, but not on top of the plant, with 3 inches of compost in early spring. The blue flowers of Perovskia are a pleasant sight in late summer and look great when planted with Rudbeckias and asters.
The variety ‘Blue Spire’ has larger flower heads and is a most impressive plant, even in winter when bold groups of the white stems make an attractive feature. Perovskia is a great addition to any garden’s sunny perennial border.
Jobs for the Week
For those with late tomatoes, peppers, chillies, aubergines and the like still bearing fruit in glass houses please remember to regularly ventilate to ensure pests and fungi don’t get established.
Now is also a good time of year to start thinking about late planting plans before winter arrives. If you have plans to plant fruit bushes as well as overwintering broad beans, garlic and onions all of which can be planted in next month so now is perfect time if ordering online.